Miley Cyrus may be romantically involved with her "The Last Song" co-star Liam Hemsworth, but she'll never forget her first love Nick Jonas, whom she dated for almost two years before breaking up with him in 2007. At a concert in Portugal last weekend, Cyrus surprised fans when she revealed her 2008 song "Full Circle," in addition to "7 Things," was about Nick. "It's about two people," she explained. "They're always gonna come back together no matter what anyone says." Although the teen idols reconciled briefly in 2009 while recording "Before the Storm," the couple called it quits after Cyrus fell for Hemsworth on set.